These Are the Jewels Kate Middleton Borrows the Most From the Queen

Cartier is a favorite of the royal family, and when the queen married in 1952, the Nizam of Hyderabad's gift to her was her own choice of necklace and tiara from the renowned jeweler. The tiara she chose has since been dismantled into three brooches that she still wears, but the necklace remains intact (although shortened slightly to suit the queen's taste). Featuring 38 diamonds plus 13 emerald-cut diamonds and a pear-shaped drop diamond, it remains a favorite of the queen's, while Kate borrowed it for the National Portrait Gallery black-tie gala back in February 2014.